“In business, above all: keep your focus. Don’t allow doubt to become your adversary. Once you’ve done your research and made a decision, don’t deviate from that path. There will always be people putting doubt into your head. And self-doubt will sneak up on you. Stick to your business plan and give it some time to work. Don’t worry about what others are doing if you’ve developed a successful formula—stick to your core values and don’t try to be what you’re not. Keep motivated and, when you celebrate, do it quietly; enjoy it for a short while and then move on to the next challenge.”